Congenital brachyesophagus-intrathoracic stomach-vertebral anomalies syndrome (CBIS-VAS) is a rare genetic disorder characterized by the presence of a congenital abnormality of the esophagus, an intrathoracic stomach, and vertebral anomalies. The esophageal abnormality is usually a narrowing of the esophagus, which can lead to difficulty swallowing and other digestive problems. The intrathoracic stomach is an abnormally located stomach that is located in the chest cavity instead of the abdomen. The vertebral anomalies can include scoliosis, kyphosis, and other spinal deformities. Treatment for CBIS-VAS typically involves surgical correction of the esophageal and vertebral anomalies, as well as dietary modifications to help manage the digestive symptoms.